.img-content{
  width: 200px;
  height: 140px;
  padding: 10px;
  border: 0px solid black;
  margin: auto;
  float: left;
  text-align: center;

}
.content{
  max-width:1120px;	
  min-width:688px;	
  margin: auto;
}
.img-content>img{
  cursor: pointer;
}
.hidden{
  display: none;
}
.dialog-content>h3{
  color: red;
}
.modal,.modal-begin {
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  padding-top: 200px;
  padding-bottom: 300px;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.4);
  text-align: center;
}
.dialog-content,.dialog-begin {
  width: 200px;
  border-radius: 10px;  
  display: inline-block;
  margin: auto;
  padding: 20px;
  text-align: center;
  background-color: tan;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  animation-name: animatetop;
  animation-duration: 0.4s
}

.again,.href-index,.begin{
  background-color: #e5ccaa;
  cursor: pointer;
  border-radius: 10px;
  padding: 10px;
  border: 1px solid black;
}
/* 添加动画 */
@-webkit-keyframes animatetop {
  from {
    top: -200px;
    opacity: 0
  }

  to {
    top: 0;
    opacity: 1
  }
}